Kerala's social harmony under stress; new development strategy needed: Sonia Gandhi SECTIONS Last Updated: Mar 02, 2021, 02:18 PM IST Share Synopsis "Kerala has been a lesson to other parts of the country and indeed the world on how to preserve and promote social harmony and amity," Gandhi said in a message to a virtual summit organised by Rajiv Gandhi Institute of Development Studies (RGIDS). Agencies Congress President Sonia Gandhi Kerala's social harmony and amity have come under stress and strain, Congress President Sonia Gandhi said on Tuesday as she advocated for a new development strategy for strengthening the bonds of brotherhood among people and overall development of the southern state.